2. Rewrite the following Scheme codes in F# and Java. (4 points) * Briefly explain what each function does. (define (member atm a_list) (cond ((null? a_list) #F) ((eq? atm (car a list)) #T) (else (member atm (cdr a_list))) (define (union set1 set2) (cond ((null? set1) set2) ((member (car set1) set2) (union (cdr set1) set2)) (else (union (cdr set1) (cons (car set1) set2)))